SSC JE Electrical 2019 with solution SET-1
 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

20Ω
10Ω
40Ω
30Ω

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SSC JE Electrical 2019 with solution SET-1
 If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

1600 W
1200 W
800 W
400 W

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SSC JE Electrical 2019 with solution SET-1
 What is the reason behind using a centrifugal switch in a single-phase induction motor?

To cut-off the starting winding at an appropriate instant
To out in the capacitor during running conditions
To improve the starting performance of the motor
To protect the motor from overloading

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SSC JE Electrical 2019 with solution SET-1
 A shaded pole motor is basically a motor

Synchronous
Shunt
Series
Single-phase induction

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